SEPTEMBER 15, 2026
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Case File

CVE-2026-82019

MEDIUM · CVSS 4.2

Source: NVD + CISA KEV + EPSS · Published 2026-09-14 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

The vulnerability affects the Java-based ad rendering script from TripleLift, which is susceptible to a DOM-based cross-site scripting attack. Unauthenticated attackers can exploit this flaw by sending specially crafted postMessage payloads, potentially leading to session hijacking and unauthorized manipulation of the Document Object Model (DOM) on the publisher's domain. Publishers utilizing this ad script should prioritize remediation to protect against potential exploitation.

CVE
CVE-2026-82019
Severity
MEDIUM
CVSS
4.2
EPSS
N/A
Java

Original NVD Description

TripleLift's ad rendering script (video-bundle.js) contains a DOM-based cross-site scripting vulnerability that allows unauthenticated attackers to execute arbitrary JavaScript in a publisher's domain by sending crafted postMessage payloads without origin validation. Attackers can cause a victim to visit an attacker-controlled page that sends malicious postMessage events to a publisher page running the ad script, enabling session hijacking and unauthorized DOM manipulation.